Remove jQuery UI script from head to custom.js file
Move jQuery UI Script to custom javascript file
Add jQuery Validation and DateTimePicker plugins to footer.
Add jQuery Simple DateTimePicker Css file to header.
Use a loop to get date and time values to simplify the process.
Use Objects and classes instead of spaghetti code all over
Put form elements in div so that we can use javascript on them.
Implement datetimepicker and validation in custom js file
Delete fields not needed